Wednesday, March 30, 2016

The imaging season up here 65N starts to be over soon, in a week we'll be out of astronomical darkness for about six months. This photo of dim supernova remnant in constellation Auriga is one of the last images for the Spring season 2016.

Sharpless 224 in visual colors
Click for a large image

Natural color composition from the emission of ionized elements, R=80%Hydrogen+20%Sulfur, G=100%Oxygen and B=85%Oxygen+15%Hydrogen to compensate otherwise missing H-beta emission. This composition is very close to a visual spectrum.

Sh2-224 in mapped colors
Click for a large image

The photo is in mapped colors from the light emitted by an ionized elements,

red=sulfur, green=hydrogen and blue=oxygen.

INFO

Supernova remnant Sharpless 224, Sh2-224, locates in constellation Auriga at distance of about 14700 light years. It has an apparent size about 60 arc minutes, the real size is around 235 light years. This is a very dim target and lots of exposure time is needed to reveal any details out of it. Beside Hydrogen alpha, there are also weak emission from ionized oxygen, O-III, and ionized sulfur, S-II.

Wide field images of the area
Click for a large photo, 1800 x 1500 pixels, 3MB

This photo is from March 2009. QHY9 astrocamera, Canon EF 200mm f1.8 camera lens and Baader narrowband filters. Total exposure time is around 15h. Original photo with technical details can be seen HERE

Mosaic image is from March 2012. This panoramic mosaic spans about 21 degrees of sky. That's 42 full Moons side by side. QHY9 astrocamera, Canon EF 200mm f1.8 camera lens and Baader narrowband filters. Total exposure time is around 70h. Original photo with technical details can be seen HERE

3D converted astro images in different formats

Followers

BUY SELECTED IMAGES

I have selected some of the best images for sale.

QUALITY:All images are in very high resolution!(Between 3500x2500 to 7000x9000 pixels)This makes it possible to print out very high quality results.Prints are real photographic prints, not inkjet prints, or similar ones. BUY SELECTED ITEMS